Pipe coupling adapter flange



FIG. 1 is a front perspective view of a pipe coupling adapter flangeshowing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof, and

FIG. 5 is a left side elevational view thereof.

The ornamental design for a pipe coupling adapter flange, as shown.